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  2. Best HVAC Systems 2024: Energy Efficiency and Cost Savings - AOL

    www.aol.com/best-hvac-systems-2024-energy...

    Cost Efficiency: Advanced HVAC systems are more energy-efficient, which significantly lowers electricity bills. Automated adjustments and smart thermostats avoid unnecessary energy use, making ...

  3. Energy Star - Wikipedia

    en.wikipedia.org/wiki/Energy_Star

    Air sealing reduces the outdoor air that penetrates a building, and duct sealing prevents attic or basement air from entering ducts and lessening the heating/cooling system’s efficiency. Energy Star qualified room air conditioners are at least 10% more energy efficient than the minimum U.S. federal government standards. [28]

  4. Heating seasonal performance factor - Wikipedia

    en.wikipedia.org/wiki/Heating_seasonal...

    Heating seasonal performance factor (HSPF) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of air source heat pumps. HSPF is defined as the ratio of heat output (measured in BTUs) over the heating season to electricity used (measured in watt-hours). [1] [2] It therefore has units of BTU ...

  5. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    The High-efficiency Electric Home Rebate Program was created in 2022 to award grants to State energy offices and Indian Tribes in order to establish state-wide high-efficiency electric-home rebates. Effective immediately, American households are eligible for a tax credit to cover the costs of buying and installing a heat pump, up to $2,000.

  6. Is your air conditioner making you sick? Experts unpack 'air ...

    www.aol.com/lifestyle/air-conditioner-making...

    Have your air-conditioning system serviced according to the manufacturer’s instructions. Some types of filters, for example, are designed to be disposable, while others are designed to be reused.

  7. Air source heat pump - Wikipedia

    en.wikipedia.org/wiki/Air_source_heat_pump

    There, the hot refrigerant gas condenses back to a liquid and transfers the stored latent heat to the indoor air, water heating or hot water system. The indoor air or heating water is pumped across the heat exchanger by an electric pump or fan. The cool liquid refrigerant then re-enters the outdoor heat exchanger coils to begin a new cycle.

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